Well, there's a lot of info on all of them here on Wiihacks, but all of them except DX need to be clipped or soldered on to the chip.

So if your chip is covered in epoxy your only choice is a drivekey-type solution, that connects to the dvd ribbon cable. Wasabi DX is one of those, but there are others too.

As far as I know they all work, but you can always check the reviews and feedback here on Wiihacks.

The dvd ribbon cable ones are limited to 3x read speed.

The DX can also be installed with solder or a clip(with Firmware 2.0 Beta) for the functionality of the zero. So you can get the best of both worlds not that one would switch back and forth on whim it just allows for more options with one chip.

The DX can also be installed with solder or a clip(with Firmware 2.0 Beta) for the functionality of the zero. So you can get the best of both worlds not that one would switch back and forth on whim it just allows for more options with one chip.

Well when you ask for the best it really is subject to opinion. What features are you looking and what do you really need from the chip? A chip can have have all the bells and whistles in the world but if your not gonna utilize them you can cut your options down a bit and make searching a bit easier.